Which ethnic group is predominantly affected by Behcets disease?

Behçet's disease is a rare, systemic vasculitis that is characterized by a diverse range of symptoms, including recurrent oral and genital ulcers, skin lesions, and ocular disorders. The prevalence and clinical manifestations of this condition show significant variations across different ethnic groups.

The correct answer is rooted in the epidemiological data that indicates a higher incidence of Behçet's disease among individuals of Japanese and Mediterranean descent. In particular, studies have shown that the disease is notably more prevalent in countries such as Turkey, Iran, and Japan, where genetic and environmental factors may contribute to the higher rates observed. This geographical correlation suggests a complex interplay between genetics, environments, and possibly infectious agents that could trigger or exacerbate the disease in these populations.

In contrast, other ethnic groups listed, such as those of Caucasian or African descent, display a much lower incidence of Behçet's disease, which is supported by numerous studies capturing the demographics of patients affected by this condition. Thus, the unique genetic predispositions and population dynamics of those of Japanese and Mediterranean descent help explain the predominance of Behçet's disease within these groups.